CVE-2021-37935

CVE-2021-37935

CVE-2021-37935
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Disclose of LDAP server's domain name 

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[Suggested description]

An information disclosure vulnerability in the login page of Huntflow Enterprise before 3.10.4 could allow an unauthenticated, remote user to get information about the domain name of the configured LDAP server. An attacker could exploit this vulnerability by requesting the login page and searching for the "isLdap" JavaScript parameter in the HTML source code. 
 
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[Additional Information]
 
Partial content of login page /account/login:


    <script>
      var PASSWORD_POLICY = {"characters_requirements": {}};
      var FORM_INFO = {
          isLogin: true,
          isLdap: "myaddomain.com",
          
          initialValues: {
              login: "",
              password: ''
          }
      }
    </script>

There is the domain name of the configured LDAP server in "isLdap" JavaScript parameter.
 
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[VulnerabilityType Other]
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

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[Vendor of Product]
Huntflow

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[Affected Product Code Base]
Huntflow Enterprise - Affected < 3.10.4. Fixed at 3.10.4. Tested at 3.6.1

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[Affected Component]
"/account/login" Login page
 
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[Attack Type]
Remote - unauthenticated users
 
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[CVE Impact]
Information Disclouse
 
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[Attack Vectors]
To exploit request login page
 
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[Reference]
https://huntflow.ru
https://gist.github.com/andrey-lomtev/c970fb7dd022d04f5b57ad37fbedd064

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[Has vendor confirmed or acknowledged the vulnerability?]
true

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[Discoverer]
Andrey Lomtev

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Andrey Lomtev / Infosec.ru team